Charging apparatus for coke ovens



1 1934- -E. o. RHODES ET AL 1,942,979

CHARGING APPARATUS FOR COKE OVENS Filed Oct. 17, 1950 3 Sheets-Sheet 1 Jan. 9, 1934- E, Q RH D r AL 1,942,979

CHARGING APPARATUS FOR COKE OVENS Filed Oct.l7, 19 30 3 Sheets-Sheet 3 Patented Jan. 9, 1934 UNITED STATES CHARGING APPARATUS FOR COKE OVENS Edmund 0. Rhodes, Ernest W. Volkmann, and James C. Fitzpatrick, Pittsburgh, Pa., assignors to American Tar Products 00., Inc., a corpora-' tion of Delaware Application October 17, 1930. Serial No. 489,314

12 Claims.

This invention relates to apparatus for charging a coke oven and more particularly to means for introducing pitch or other liqueflable, carbonizable material.

The apparatus of the present invention is particularly suited for charging liquid carbonizable substances into a coke oven in the manner set forth in applications of E. O. Rhodes, Serial No. 338,644, filed Feb. 9, 1929, and Serial No. 500,540, filed Dec. 6, 1930. As set forth in the former application, liquid carbonizable substances are introduced with steam into a coke oven at certain desirable rates. The liquid is preferably sprayed and in the process outlined in the latter case it is desirable to change the rate of flow of material into the coke oven while charging the same.

The present apparatus comprises, in general, means for directing liquid carbonizable material into a coke oven and means for controlling the supply of the material to the coke oven.

For a detailed description of a preferred form of the present invention, reference is made to the accompanying drawings in which Figure 1 is a top plan view of a still and a portion of a coke oven battery and the apparatus for charging the coke oven with material from the still; 9

Fig. 2 is a side view of a single charging apparatus shown placed in position for introducing material into one of the charging holes in a byproduct coking retort oven, a portion of the oven being in vertical section;

Fig. 3 is a view, partly in cross-section and partly in side elevation of a portion of the coke oven and charging apparatus mounted in charging position; and

Fig. 4 is a perspective view of a coupling means employed in the present apparatus.

Figure 1 shows charging apparatus mounted in position for introducing liquid carbonizable material into the charging holes 1 of a by-product coke oven battery 2 provided with the usual standpipes 2 connecting each oven chamber 2 (Fig. 2) with a collecting main 2. Heating flues 2 are provided for the oven chambers. A manifold or conduit 3 is arranged so as to feed liquid carbonizable material to each of the charging devices and one end thereof is connected to any source of supply such as a still 4 by means of a feed pipe 5. The other end of the manifold 3 is connected to a return pipe 6.

Enlarged casings 7 are placed at intervals along the manifold 3 forming a plurality of chambers each having an inlet and an unobstructed outlet to which the sections of the manifold 3 are connected in series. A pipe 8 passes through each of the casings substantially at right angles to the said manifold. Each of the pipes 8 are connected at one end to a pipe ormanifold 9 which is supplied with hot gaseous media such as steam, flue gases or gases containing nitrogen, carbon dioxide, or carbon monoxide, as set forth in the aforesaid applications.

The other end of each-of the pipes-8 is connected to means for introducing liquid carbonizable matter and steam into a coke oven through the charging holes 1. The said means are preferably spray nozzles 10 such as that shown in detail in Fig. 3. The nozzles are adapted to be directed downwardly into each of the charging holes and are spaced substantially the same distance apart as the charging holes so as to be positioned preferably in the center thereof.

Each of the charging devices is substantially of the same construction and the description which follows is applicable to each, like numerals being used to designate like parts.

A'pipe or tube 11 for admitting steam is connected to the pipe 8 and by-passes the enlarged casing I to the spray nozzle 10. The pipe 11 has a flexible portion 13, and a portion 14 which extends through the center of the nozzle 10, its open end 15 being at any desired distance from the spray opening 16 of the nozzle 10. Spacing means 17 are so placed as to keep'th'e pipe 14 centered within the nozzle 10.

A specially constructed charging hole cover 18 may be provided having an opening at its center in which a tapered plug 19 may be inserted. This plug is provided with a central hole 20 by means of which the nozzle 10 may be connected to it.

A particularly leak-proof construction may be obtained by providing screw threads in the hole 20 of the plug 19 for a short distance from either end. In this case, the pipe forming the nozzle 10 may be in two sections, each section having an outer screw thread 21 and 22 for securing them in position at'either end of the hole 20.

The portion of the pipe 8 which is within thecasing '7 isv provided with a joint 23 by which a short pipe 24 is connected to the pipe 8 and is open to the chamber formed by the casing 7. The short pipe 24 may be provided with a valve of any suitable type as, for instance, a valve 25 The pipe 8 is provided with a valve 28 between the joint 12 and the casing 7. A valve 29 is provided in the pipe 11.

The pipe 8 may be divided into sections so that connection to the nozzle 10 may be broken to permit the removal thereof from the charging hole of the coke oven. The union between the sections may be constructed by providing a flange 30 and a flange 31 which are screwed on to the ends of the pipe. Bolts 32 on opposite sides of the pipe, pass through the flanges 30 and 31 and the heads 33 thereof are welded to the flange 30.

The flange 31 is constructed as shown in Fig. 4

and is provided with slots or cut-out portions 34 into which the bolts 32 are passed when connection is made. The flanges 30 and 31 are brought closely together by tightening the nuts 35 at the ends of the bolts 32. A suitable gasket may be placed between the flanges 30 and 31.

Assuming that pitch or other carbonizable liquid is being circulated, by means of a pump 36 placed inside the still 4, throughpipes 5, 3 and 6 and that the oven is at the proper temperature to receive a charge, the steam valve 28 is open and steam is blown through the nozzle 10 into the oven. This is done to heat the pipe leading from the casing 7 to the oven. The valve 29 is then open to permit the flow of steam through pipes 11, 13 and 14.

The valve 28 is then closed and the valve 29 is adjusted so that the correct pressure is indicated on the gauge 37. The valve 25 is then opened by turning the wheel 2'7 and the desired amount of pitch is permitted to flow to the nozzle 10. The pitch is sprayed into the oven with steam or other hot gas coming from the end 15 of the pipe 14. As soon as the proper amount of material which has been charged into the oven, the valve 25. is closed and the valve 28 is opened, whereby steam is blown through the nozzle 10 so as to clean it out thoroughly.

The nozzle 10 is then removed by loosening the nuts 35 and by slipping the flange 31 off the bolts 32. The plug 19 is removed with the nozzle and the flexible pipe 13 permits of these being placed to one side on top of the coke oven without the necessity of breaking the connection at the union 38. A blank plug is substituted for the plug 19 or if desired the cover 18 may be replaced by the usual charging hole cover, while the coking operation is proceeding.

The present apparatus makes it possible to successfully draw at will pitch from a pipe line. The fact that pitch solidifies on cooling makes it necessary to keep all portions of the apparatus,

particularly the moving parts, well above the temperature at which the pitch solidifies. This may be accomplished by keeping the moving parts of the apparatus submerged and by circulating the pitch in the manner described which does away with the need for insulating materials.

We claim as our invention:

1. Apparatus for charging a carbonizing means with liquid carbonizable material, which apparatus comprises a chamber having an inlet and an unobstructed outlet to effect the continuous passage of liquid carbonizable material therethrough, a pipe passing through the said chamber and provided with an opening in the portion thereof which is within the chamber to effect the passage of the said liquid from the chamber into the said pipe, a valve adapted to seat on the edge of the said opening and adapted to control the flow of the said liquid through the said opening, the said pipe being adapted to conduct liquid carbonizable material from the said chamber to a coke oven.

2. Apparatus for charging a carbonizing means with liquid carbonizable material, which apparatus comprises a chamber having an inlet and an outlet to efiect the continuous passage of liquid carbonizable material therethrough, a pipe passing through the said chamber and provided with an opening in the portion thereof which is within the chamber to effect the passage of the said liquid from the chamber into the said pipe, a valve adapted to control the flow of the said liquid through the said opening, a valve in the portion of the said pipe leading to one side of the said chamber, and a nozzle on the end of the said pipe on the opposite side of the said chamber, the said second valve being adapted to effect the passage of a hot gaseous medium through the said pipe and the said nozzle.

3. Apparatus for charging a carbonizing means with liquid carbonizable material, which apparatus comprises a chamber having an inlet and an outlet to efiect the continuous passage of liquid carbonizable material therethrough, a pipe passing through the said chamber and provided with an opening in the portion thereof which is within the chamber to effect the passage of the said liquid from the chamber into the said pipe, a valve adapted to control the flow of the said liquid through the said opening, a valve in the portion of the said pipe leading to one side of the said chamber, a nozzle on the end of the said pipe on the opposite side of the said chamber, the said second valve being adapted to efiect the passage of a hot gaseous medium through the said pipe and the said nozzle, and a tube also adapted to direct hot gaseous media through the said nozzle.

4. Apparatus for charging a carbonizing means with liquid carbonizable material, which apparatus comprises a chamber having an inlet and an outlet to effect the continuous passage of liquid carbonizable material therethrough, a pipe passing through the said chamber and provided with an opening in the portion thereof which is within the chamber to effect the passage of the said liquid from the chamber into the said pipe, a valve adapted to control the flow of the said liquid through the said opening, and a nozzle at one end of the said pipe adapted to direct the said liquid carbonizable material into a coke oven.

5. Apparatus for charging a carbonizing means with liquid carbonizable material, which apparatus comprises a chamber having an inlet and an outlet to effect the continuous passage of liquid carbonizable material therethrough, a pipe passing through the said chamber and provided with an opening in the portion thereof which is within the chamber to effect the passage of the said liquid from the chamber into the said pipe, a valve adapted to control the flow of the said liquid through the said opening, a nozzle at one end of the said pipe adapted to direct the said liquid carbonizable material into a coke oven, and a tube adapted to direct a hot gaseous medium through the said nozzle.

6. Apparatus for charging a carbonizing means with liquid carbonizable material, which apparatus comprises a pipe having an open end adapted to be directed into a coke oven, a chamber surrounding a portion of the said pipe and provided with an inlet and an outlet to eifect the continuous passage of liquid carbonizable material therethrough, the said portion of the pipe within the said chamber being provided with an opening, means foropening and closing the said opening, a valve for controlling the flow of hot gases through the said pipe portion to the said open end of the said pipe, and a tube connected to the said pipe also for directing a hot gaseous medium through the said open end of the said pipe.

7. Apparatus for charging a coke oven with liquid carbonizable material, the said coke oven having a plurality of charging holes, which apparatus comprises a vessel for heating liquefiable carbon izable material, a conduit leading from the vessel and back thereto and forming a circuitous passage through which liquid carbonizable material is adapted to flow continuously, a plurality of pipes detachably connected to the said conduit at points which are substantially the same distance apart as the said charging holes.

8. Apparatus for charging a coke oven with liquid carbonizable material, the said coke oven having a plurality of charging holes, which apparatus comprises a vessel for heating liquefiable carbonizable material, a conduit leading from the vessel and back thereto and forming a circuitous passage through which liquid carbonizable material is adapted to flow continuously, a pipe for conveying a hot gaseous medium, a plurality of charging pipes each of which is detachably connected to the said first named pipe and to the said conduit, the said charging pipes being adapted to supply liquid carbonizable material and hot gases to the coke oven through each of the said charging holes.

9. In combination with a by-product coke oven battery comprising a plurality of coking chambers with heating flues therebetween and provided with charging openings, a charging apparatus for introducing carbonizable liquid material into the said chambers through the said charging openings, the said charging apparatus comprising" a conduit, for conveying liquid carbonizable material, provided with a series of spaced enlargements therein, a feeder pipe passing through each of the said enlargements, each of the said feeder pipes within the said enlargements being provided with an opening, a valve for each of the said openings in the said feeder pipes, for controlling the flow of the said carbonizable material into the said feeder pipes, a spray pipe, at one end of each of the said feeder pipes, for directing the liquid carbonizable material into the said chambers, a steam supply pipe connecting each of the other ends of the said feeder pipes, a valve in each of the said feeder pipes at a point between the said steam supply pipe connections and the said enlargements, and a plurality of steam pipes, each provided with a valve, for conveying steam from the said steam supply pipe to each of the said spray pipes.

10. In combination with a by-product coke oven battery comprising a plurality of coking chambers with heating flues therebetween and provided with charging openings, a vessel for heating liquefiable carbonizable material, a conduit for conveying the said material out of the said vessel and back, a plurality of spaced enlargements in the said conduit, a plurality of feeder pipes each of which is connected to the said enlargements for conducting the said material to the said charging openings, the said feeder pipes having openings in the portions thereof within the said enlargements, valves for controlling the flow of material through the said openings in the said feeder pipes, and steam pipes connected to the said feeder pipes for conducting steam therethrough.

11. Apparatus for charging a coke oven with liquid carbonizable material, the said coke oven having a charging hole, which apparatus comprises a vessel for hot, liquid, carbonizable material, means for maintaining said material in hot, liquid, flowable condition, a conduit leading from the vessel to a point adjacent said charging hole and back to said vessel thereby forming a circuitous passage through which liquid carbonizable material is adapted to flow continuously, means for maintaining the fiow of said material in said conduit, and a pipe connected to the said conduit for passage of said material from the conduit and leading to the charging hole.

12. Apparatus for charging a coke oven with liquid carbonizable material, the said coke oven having a charging hole, which apparatus comprises a vessel for hot, liquid, carbonizable material, a conduit leading adjacent said charging hole and back to saidvessel thereby forming a circuitous passage through which liquid carbonizable material is adapted to flow continuously, means for maintaining the from the vessel to a point flow of said material in said conduit, a pipe connected to said conduit for passage of material to the coke oven and leading to the charging hole, and a second pipe for conveying hot gas into said first named pipe.

EDMUND O. RHODES. ERNEST W. VOLKMZANN. JAMES C. FITZPATRICK. 

